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Finding the Fourth Proportional to 630,399.88, 945,599.82 and 270,492.58

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Solution

The fourth proportional to 630,399.88, 945,599.82 and 270,492.58 is: 405,738.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,399.88 : 945,599.82 = 270,492.58 : x
  2. Step 2: Convert to fraction form
    630,399.88/945,599.82 = 270,492.58/x
  3. Step 3: Cross multiply
    630,399.88x = 945,599.82 × 270,492.58
  4. Step 4: Simplify right side
    630,399.88x = 255,777,734,959.34
  5. Step 5: Solve for x
    x = 255,777,734,959.34/630,399.88
  6. Step 6: Final answer
    x = 405,738.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.